一、 Main types:
1. Propeller agitator
It is composed of 2-3 propelling propeller blades with high working speed. The peripheral speed of the blades is generally 5-15m / s. It is suitable for mixing low viscosity (< 2PA · s), emulsion and suspension with less than 10% solid particles. The rotating shaft of the agitator can also be inserted into the tank horizontally or obliquely. At this time, the circulation circuit of the liquid flow is asymmetric, which can increase the turbulence and prevent the surface depression.
2. Turbine agitator
It consists of two or four straight or curved blades installed on a horizontal disc. The ratio of blade outer diameter, width to height is generally 20:5:4, and the circumferential velocity is generally 3-8m / s. The highly turbulent radial flow caused by turbine rotation is suitable for dispersion of gas and immiscible liquid and liquid-liquid reaction process. The viscosity of the stirred liquid is generally less than 25 PA · s.
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3. Paddle agitator
There are two types of horizontal paddle and inclined paddle. The flat paddle agitator consists of two flat blades. The ratio of blade diameter to height is 4-10, and the circumferential velocity is 1.5-3 M / s. The two blades with smaller radial flow velocity are reversed by 45 ° or 60 ° to produce axial flow. The paddle agitator has a simple structure and is often used for mixing low viscosity liquid and dissolving and suspending solid particles.
4. Anchor agitator
The shape of the outer edge of the blade should be the same as that of the inner wall of the stirred tank, and there is only a small gap between them. It can remove the viscous reaction products attached to the wall of the tank or the solids accumulated at the bottom of the tank, so as to maintain a good heat transfer effect. The peripheral velocity of the blade is 0.5-1.5m/s, which can be used to agitate Newtonian fluid and pseudoplastic fluid (see viscous fluid flow) with viscosity up to 200 PA · s. Only when the high viscosity liquid is stirred, there is a large stagnation zone in the liquid layer.
5. Ribbon mixer
The outer diameter of the ribbon is equal to the pitch of the screw. It is specially used for mixing high viscosity liquid (200 ~ 500pa · s) and pseudoplastic fluid, and is usually operated in laminar flow state.
6. Magnetic stirrer
Corning digital heater has a closed-circuit knob to monitor and adjust the mixing speed. Microprocessor automatically adjusts motor power to adapt to water quality, viscous solution and semi-solid solution.
7. Magnetic heating agitator
Corning digital heating agitators have an optional external temperature controller (cat. No. 6795pr), which can also monitor and control the temperature in the container.
8. Vane agitator
According to the physical properties, capacity and stirring purpose of different media, the appropriate agitator can play a great role in promoting chemical reaction speed and improving production efficiency. The rotating speed of the agitator should be more than 300r / min.
9. Frequency conversion double layer agitator
The base, supporting rod and motor of the frequency conversion mixer are fixed as a whole with patent technology. Patent chuck, no loose, no swing, no falling off, safe and reliable. The chrome plated supporting rod is thick at the bottom and fine at the top, with strong rigidity and reasonable structure. It has the advantages of easy to move and light weight. Suitable for all kinds of small containers.
二、 What are the functions of food mixers
1. The food blender has high / low speed, and it can play a seamless and handy function in both mixing and grinding functions.
2. The combination of shredders can easily chop meat, vegetables, nuts and coffee beans, and make all kinds of delicious food.
3. Powerful accessories, including egg beater, dough hook and blender.
Post time: Oct-28-2020