![]() The preceding equation of the mixture viscosity applies only to laminar flow and to spherical particles. Μ L = viscosity of liquid in slurry mixture, cP The viscosity of a dilute suspension consisting of solids in a liquid can be calculated approximately from the volume fraction Φ and the viscosity of the liquid using the following equation: The concentration of solids by volume C v and the concentration of solids by weight C w are related to the solid density and the mixture density by the following equation: Thus we get the following equations for the volume fraction and volume ratio:Ĭ v = Concentration of solids by volume, % The term volume ratio represents the ratio of the volume of solid to the volume of liquid. The term volume fraction represented by the symbol Φ is equal to C v/100. Thus C w may be 50 percent solids by weight, whereas C v may be 15 percent solids by volume. The term C v is a corresponding value in terms of volume. The variable C w represents the amount of solid in the mixture by weight. Ρ L = density of liquid in mixture, kg/m 3 ![]() Ρ s = density of solid in mixture, kg/m 3 The density of slurry can be calculated from the following equation: Since the slurry consists of solid particles suspended in a liquid, the properties of a slurry mixture will depend upon those of the constituents. When the slurry concentration is higher than 10 percent, it is generally regarded as non-newtonian. When the particle concentration of solid within the liquid is less than 10 percent by volume, the slurry may be considered newtonian. Slurries may be newtonian or non-newtonian in nature. In this case the coal slurry will be a mixture of coal and water, which is a transportation medium used to propel the combined solid-liquid mass through the pipeline using centrifugal pumps to provide the required pressure. A slurry pipeline is used to transport slurries from the source such as a coal mine to its destination such as a coal power plant. Before we go into the details let us understand the basic concept of a slurry.Ī slurry consists of solid particles suspended in a liquid. Fusion Fluid Equipment offers Right Angle Mixers within their Flow Series Product Line.Today's blog entry addresses how to calculate the physical properties of slurries. Because Right-Angle Mixers are also Gear Drive mixers, they tend to generate high pumping efficiency, but lower levels of shear. Some Right-Angle Mixers incorporate bearing support to provide additional mixer shaft stability. Worm drives tend to be more economically friendly, but lack the quality and high service factor of a helical-based gear arrangement. Right angle gearboxes typically utilize worm or helical-based gear arrangements to accomplish the change in direction and reduction in shaft speed. ![]() Right-Angle Mixers are usually chosen to address economic, environmental and logistical issues like cost constraints, equipment utilization, or limited clearance/accessibility. A Gear Drive mixer designed such that the axis of rotation of the mixer shaft is oriented at a right angle (90°) to the axis of rotation of the motor shaft through the insertion of a right angle gearbox between the motor shaft and the mixer shaft.
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