Mixing Performance of LR500 Impeller for Highly Viscous Fluid

Kato, Yoshikazu; Nemoto, Takahiro; Ago, Ken-ichi; Arai, Takuya; Furukawa, Haruki; Kato, Yoshihito

doi:10.1252/kakoronbunshu.44.346

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…The power correlation of the multistage pitched paddle type (Figure 8(h)) four-stage is similar to that of the LR500 because the LR500 can be correlated using the correlation equation for anchor impellers, [5] we verified whether the correlation is possible using the power correlation equation for anchor impellers, Equation (3). Each parameter within Equation ( 3) is shown in Figure 21.…”

Section: Correlation Of Power Consumptionmentioning

confidence: 59%

“…Recently, it was found that Satake Multimix Corporation's Supermix LR500 has better mixing performance than helical ribbon impellers and can handle changes in liquid level. [5] Furthermore, it was found that a mixing shaft and support rods affect mixing performance. [5] The authors developed a mixing impeller for highly viscous fluid that has a simple geometric shape and is easy to manufacture to reduce production costs.…”

Section: Introductionmentioning

confidence: 99%

“…[5] Furthermore, it was found that a mixing shaft and support rods affect mixing performance. [5] The authors developed a mixing impeller for highly viscous fluid that has a simple geometric shape and is easy to manufacture to reduce production costs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development and evaluation of mixing mechanism of new transformable multiple impeller (AM impeller)

Furukawa,

Takahashi,

Matsuoka

et al. 2023

J Adv Manuf & Process

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The axial flow in the vessel was the most critical flow under the laminar region, where the Reynolds number was less than 10. The most popular impeller which generates the axial flow is a helical ribbon impeller, but the production cost is high. By combining some pitched blade impellers, authors developed a new impeller, the production cost is lower than that of the helical ribbon. The mixing performance was investigated in laminar region. The new impeller had the same mixing performance as a helical ribbon. The partial helical ribbon type has a down flow that originates from two locations and intersects twice near the mixing shaft, and the four‐stage pitched paddle type has two cylindrical down flows. AM impeller is not affected by the shaft, and it is considered to exhibit high mixing performance. The phase angle of the blades caused these characteristics of down flows of the AM impeller.

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Section: Correlation Of Power Consumptionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

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Development and evaluation of mixing mechanism of new transformable multiple impeller (AM impeller)

Furukawa,

Takahashi,

Matsuoka

et al. 2023

J Adv Manuf & Process

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“…In our previous study (Furukawa et al, 2018), we found that a baffle placed with a clearance between the baffle and the mixing vessel promoted laminar mixing in Newtonian fluid. This mixing method just requires a simple equipment and the rotational torque is low.…”

Section: Introductionmentioning

confidence: 85%

“…Therefore, many kinds of mixing equipment and methods were developed to promote laminar mixing. A large impeller like helical ribbon impeller is used to improve laminar mixing (Carreau et al, 1976;Furukawa et al, 2013;Kato et al, 2015;Kato et al, 2018;Mihailova et al, 2018). Another method is unsteady mixing method (Murakami et al, 1980;Kato et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Mixing Performance of Inner Baffle in Shear Thinning Fluid

2021

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A mixing performance of an inner baffle was investigated in shear thinning fluid. The inner baffle was placed with a clearance between baffle and vessel wall. A traditional two-bladed paddle impeller was used. Four planar baffles were vertically placed in two ways: 1) standard baffle condition 2) inner baffle condition. The standard baffle condition was that the baffle was placed on the mixing vessel wall. A mixing pattern was visualized by decolorization method based on an oxidation-reduction reaction with sodium thiosulfate and iodine. Flow field for shear thinning fluid in mixing vessel was measured by particle image velocimetry and was shown as stream line. A pair of isolated mixing regions (IMR) like doughnut-ring formed above and below the impeller under standard baffle condition. However, IMR dissipated under inner baffle condition. As a result, a mixing time under the inner baffle condition was drastically decreased. This study suggested that inner baffle promoted mixing in shear thinning fluid.

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