Attention to heating and cooling of high shear emulsification machine [Wuxi Jiangke Automation] - The principle of high shear emulsification machine is to complete emulsification, dispersion grinding, homogenization and mixing functions depending on the relative high-speed movement of the rotor and stator. The principle of its emulsifier is to crush and emulsify the products to be mixed under the strong shear force generated by high-speed rotation, which can be used for continuous emulsification or dispersion of multiphase liquid media, and also plays a role in conveying low viscosity liquid media. It can also realize continuous mixing of powder and liquid in proportion, and is widely used in daily chemical, food, medicine, chemical, petroleum, coating, nano materials and other fields. But how much can the grinding fineness of the emulsifying machine reach? This should be discussed from the following aspects: material characteristics, hardness, toughness, concentration, particle size of the material itself, etc.
Precautions for heating and cooling of high shear emulsification machine [Wuxi Jiangke Automation] Generally speaking, if the toughness is too large, the fineness that the high shear emulsification machine can meet should be 100 μ For example, if the hardness of materials such as carbon fiber is too high, the grinding effect is not good. For example, during the grinding and mixing stage of emulsion paint, materials contain medium with high hardness such as titanium dioxide, so the fineness of the emulsion machine during a certain working time may be the particle size of titanium dioxide itself.
The final fineness of emulsion paint is 50 μ M or so. Therefore, it is impossible to obtain an exact answer to simply require the fineness of materials after emulsification and grinding by the emulsification machine. Do not blindly listen to the unwarranted promises of some manufacturers.
1. Notes on heating of high shear emulsification machine: the pot is heated by water bath electric heating, and the temperature is heated by the electric heating rod in the jacket through the heating medium. Generally, water is used as the heating medium. Before heating, fill the jacket with water (the exhaust port is full of water, and the medium in the part will overflow due to expansion during the first heating). Note: the exhaust port should be kept unblocked. It is strictly prohibited to install valves and block the exhaust port, and the exhaust port must be led to a safe place with a hard pipe to avoid injury. Then add materials into the inner pot before heating. (Note: If the jacket is heated with water, water shall be replenished frequently to avoid burning the electric heater after the jacket water is burned dry). (It shall be carried out in accordance with the process requirements).
2. Precautions for cooling of high shear emulsification machine: tap water is generally used as the cooling water source for the cooling of Wuxi Jiangke high shear emulsification machine (the cooling effect is better if the user has conditions). Open the inlet valve and outlet valve, hold the opening and closing degree of the inlet and outlet valves to control the cooling water flow, so as to control the cooling speed.