Propeller type agitator: It consists of 2-3 propeller blades with high working speed and the peripheral speed of the outer edge of the blade is generally 5~15m/s. The propeller type agitator mainly causes axial flow and produces a large circulation amount, and is suitable for stirring low viscosity liquid, turbid liquid and suspension with solid content of less than 10%. The shaft of the agitator can also be inserted horizontally or obliquely into the tank. At this time, the circulation loop of the liquid flow is asymmetrical, which can increase the turbulence and prevent the liquid surface from being sunken.
Turbo agitator: Install 2-4 flat or curved blades on a horizontal disc. The ratio of the outer diameter, width to height of the blade is generally 20:5:4, and the peripheral speed is generally 3-8 m/s. The worm wheel causes a highly turbulent radial flow when rotated, and is suitable for the dispersion of gas and non-inter-liquid and liquid-liquid reaction processes. The viscosity of the liquid to be stirred generally does not exceed 25 Pa.s.
Paddle agitator: There are two types of paddle type and paddle type. The paddle type agitator consists of two straight blades. The blade diameter to height ratio is 4-10, the peripheral speed is 1.5-3 m/s, and the resulting radial flow velocity is small. The two leaves of the pitched agitator are reversed by 45 or 60 degrees, thus creating an axial flow. The paddle stirrer has a simple structure and is commonly used for the mixing of low viscosity liquids as well as the dissolution and suspension of solid particles.
Anchor stirrer: The shape of the outer edge of the paddle is the same as the inner wall of the agitating tank. There is only a small gap between them. The viscous reaction product attached to the groove wall or the solid matter accumulated on the bottom of the groove can be clearly seen to maintain good heat transfer. effect. The peripheral speed of the outer edge of the blade is 0.5-1.5 m/s, which can be used to stir Newtonian fluids and pseudoplastic fluids with a viscosity of up to 200 Pa.s. When the high viscosity liquid is stirred, there is a large stagnation zone in the liquid layer.
Ribbon Agitator: The outer diameter of the ribbon is equal to the pitch. It is specially used to stir high viscosity liquids and pseudoplastic fluids, usually operating under laminar flow conditions.
Magnetic Stirrer: The digital heater has a closed-circuit knob to monitor and adjust the agitation speed. The microprocessor automatically adjusts the motor power to accommodate water, viscous and semi-solid solutions.
Magnetically heated stirrer: The digital heated stirrer has an optional external temperature that allows them to monitor and control the temperature in the vessel.