① Propeller agitator
It is composed of 2 ~ 3 propeller blades, with high working speed, and the peripheral speed of the blades is generally 5 ~ 15m/s ... The propeller agitator mainly causes axial liquid flow and produces large circulation, which is suitable for mixing low-viscosity (< 2pa·s) liquids and emulsions and suspensions with solid particle content below 10%. The rotating shaft of the agitator can also be inserted into the tank horizontally or obliquely. At this time, the circulation loop of liquid flow is asymmetric, which can increase turbulence and prevent the liquid level from sinking.
② Turbine agitator
It consists of 2 ~ 4 flat or curved blades mounted on a horizontal disk. The ratio of the outer diameter, width and height of the blade is generally 20:5:4, and the peripheral speed is generally 3 ~ 8m/s. When the turbine rotates, it causes highly turbulent radial flow, which is suitable for the dispersion of gas and immiscible liquid and the liquid-liquid reaction process. The viscosity of the stirring liquid is generally not more than 25 Pa s.
③ Paddle agitator
There are two kinds of flat oars and inclined oars. The flat paddle agitator consists of two flat blades. The ratio of blade diameter to height is 4 ~ 10, the circumferential velocity is 1.5 ~ 3m/s, and the radial liquid velocity is relatively small. The two blades of the inclined paddle agitator rotate 45 or 60 degrees in opposite directions, thus generating axial liquid flow. Paddle agitator has a simple structure and is often used to mix low viscosity liquids, dissolve and suspend solid particles.
④ Anchor agitator
The shape of the outer edge of the blade should be consistent with the inner wall of the stirring tank, and there is only a small gap between them, so as to remove the viscous reaction products attached to the tank wall or the solid objects piled up at the bottom of the tank and maintain good heat transfer effect. The peripheral speed of the outer edge of the blade is 0.5 ~ 1.5m/s, which can be used to stir Newtonian fluid and quasi-plastic fluid with viscosity as high as 200 pa·s (see viscous fluid flow. Only when the high viscosity liquid is stirred, a large stagnation zone will appear in the liquid layer.
⑤ Belt agitator
The outer diameter of the spiral belt is equal to the pitch, and it is specially used to stir high-viscosity liquid (200 ~ 500 Pa·s) and quasi-plastic fluid, usually operating in laminar flow.
⑥ Magnetic stirrer
Corning digital heater has a closed-circuit knob to monitor and adjust the stirring speed. The microprocessor automatically adjusts the power of the motor to adapt to water quality, viscous solution and semi-solid solution.
⑦ Magnetic heating stirrer
Corning digital heating mixer has optional external temperature controller (catalog number 6795PR), which can also monitor and control the temperature in the container.
⑧ Folding blade agitator
According to the physical properties, capacity and stirring purpose of different media, the corresponding stirring is selected. It can play a great role in promoting the speed of chemical reaction and improving production efficiency. Hinged turbine agitator is generally suitable for gas-liquid mixing reaction, and the number of revolutions of agitator should be above 300 rpm.
Pet-name ruby frequency conversion double-layer agitator
The base, pillar and motor of frequency conversion agitator are fixed into a whole by patented technology. Patent chuck, not loose, not swinging, not falling off, safe and reliable. Chrome-plated pillar, thick at the bottom and thin at the top, strong rigidity and reasonable structure. It has the advantages of convenient movement and light weight. Suitable for all kinds of small containers.