Unimix Equipments Pvt Ltd

Ambarnath, Mumbai, Maharashtra

High efficiency impellersdesigned to maximize fluid flow and minimize shear rate.

3 or 4 tapering twisted blades, cambered and sometimes provided with rounded leading edges.

The blade angle at the tip is lower than that at the hub. Resultant flow is streamlined. Vertices around the impeller are lower. Lower power number than PBT.

The solidity ratio is the ratio of the total blade area to a circle circumscribing the impeller.

Low solidity ratio Liquid blending and solid suspensions.

Higher solidity ratio Axial flow patterns as the viscosity increases. In gas-liquid dispersions wide blades provide an effective area of preventing bypass of gas through the impeller hub.

• The anchor impeller and the helical impeller are the two commonly used close clearance impellers.
• The diameter of the close clearance impellers is typically 90 95 percent of the inside diameter of the vessel.
• The shear near the vessel wall reduces the build up of stagnant material and promotes treat transfer.
• The anchor impeller is a radial flow impeller
• Helical impeller provides axial discharge of material by producing strong top to bottom motion
• Anchor blades may be used in combination with other types of impellers