Four technical advantages of three-effect falling film concentrator

1. Continuous feeding and discharging, the system is stable and easy to operate. When working in this series of equipment, it only needs to adjust various parameters as required in the initial feeding stage, and at the same time ensure continuous and stable supply of materials, convenient adjustment, continuous and stable concentration, and meet the requirements of qualified specific gravity and can simultaneously recover the solvent.

Second, the concentration ratio is significant (up to 1.25-1.2.8), the thermal efficiency is high, and the energy saving effect is remarkable. In the structure of the system, we adopt an optimized design scheme to make the evaporation heat transfer coefficient reach 3400-3800w (m2 .K), which is very suitable and beneficial for the concentration of Chinese herbal extracts. The main reason is that the materials are in the heating tube. Membrane-like rapid flow, the same heating temperature difference is small (only 8-10 °C), the evaporation temperature is low, the material can form a rapid flash after entering the evaporator, the residence time of the liquid in the heating tube and the heating time is short It has a wide adaptability to the viscosity of the material (50-500CP). It is not easy to crystallize and coke out due to heat. It has a small amount of damage to the active ingredients, and the heat energy is fully utilized, and the energy saving effect is remarkable.

Third, it is easy to adopt advanced control methods. Because the NLJ series concentration process mainly takes the temperature of each effect as the control parameter, the parameters of the system are stable during operation, and it is easy to adopt advanced automatic control (PLC and human-machine interface control), and the control equipment cost is relatively low, which is realized for the production of traditional Chinese medicine. Fully automatic control has greater convenience.

The structure design of the four-effect and three-effect reducer concentrator is advanced and reasonable. In terms of structure, we adopt an optimized design scheme. We use an advanced liquid distribution device for the distribution of the liquid during the feeding and the flow in the tube, so that the material can be evenly fed into the heating tubes. At the same time, the high quality imported inner mirror tube is selected. As a heating pipe, the flow resistance of the material in the pipe is small, the speed is fast, and the scale is not easily precipitated. In order to improve the yield of concentration, the system is equipped with an advanced mist trap to eliminate the ability of entrainment of the mist, the separation efficiency can reach 96-99%, and the resistance drop is small.