Stainless steel emulsion mixing tankWidely used in industries such as coatings, pharmaceuticals, building materials, chemicals, pigments, resins, food, and scientific research. This device can be made of materials such as carbon steel and stainless steel according to the process requirements of the user's product, and equipped with heating and cooling devices to meet different process and production needs. The heating forms include jacket electric heating and coil heating. The equipment has a reasonable structural design, is durable, and has the characteristics of simple operation and easy use. It is an ideal chemical equipment with low investment, fast production, and high returns.
Introduction to types of stainless steel emulsion mixing tanks:
1. There are two types of paddle mixers: flat paddle and inclined paddle. The flat blade agitator consists of two straight blades. The ratio of blade diameter to height is 4-10, and the circumferential velocity is 1.5-3m/s, resulting in a relatively low radial flow velocity. The two blades of the inclined blade agitator (Figure 4) are folded at opposite angles of 45 ° or 60 °, resulting in axial liquid flow. The paddle agitator has a simple structure and is commonly used for mixing low viscosity liquids and dissolving and suspending solid particles.
2. The turbine agitator consists of 2-4 straight or curved blades installed on a horizontal disc (Figure 3). The ratio of the outer diameter, width, and height of the blade is generally 20:5:4, and the circumferential velocity is generally 3-8m/s. Turbine generates highly turbulent radial flow during rotation, suitable for the dispersion of gases and immiscible liquids, as well as liquid-liquid phase reaction processes. The viscosity of the stirred liquid generally does not exceed 25 Pa · s.
3. Magnetic heating mixer Corning digital heating mixer comes with an optional external temperature controller (Cat. No. 6795PR), which can also monitor and control the temperature inside the container.
4. The shape of the outer edge of the anchor agitator blade and the inner wall of the mixing tank should be * (Figure 5), with only a small gap between them, which can remove viscous reaction products attached to the tank wall or solid matter accumulated at the bottom of the tank, and maintain good heat transfer effect. The peripheral velocity of the blade edge is 0.5-1.5m/s, which can be used to stir Newtonian and quasi plastic fluids with viscosity up to 200Pa · s (see viscous fluid flow). However, when stirring high viscosity liquids, there is a large stagnant zone in the liquid layer.
5. The rotary propeller agitator consists of 2-3 propeller blades (Figure 2), with a high working speed and a circumferential velocity of generally 5-15m/s at the outer edge of the blades. The rotary blade agitator mainly causes axial liquid flow and has a large circulation capacity, suitable for stirring low viscosity (<2Pa · s) liquids, emulsions, and suspensions with solid particle content less than 10%. The rotating shaft of the mixer can also be inserted horizontally or diagonally into the groove, and at this time, the circulation loop of the liquid flow is asymmetric, which can increase turbulence and prevent liquid level depression.
6. The Corning digital heater with magnetic stirrer is equipped with a closed-loop knob to monitor and adjust the stirring speed. The microprocessor automatically adjusts the motor power to adapt to water quality, viscous solutions, and semi-solid solutions.
7. The outer diameter of the spiral belt of the spiral stirrer is equal to the pitch (Figure 6), and it is specifically used for stirring high viscosity liquids (200-500 Pa · s) and quasi plastic fluids, usually operating in laminar flow.