Four technical advantages of three effect falling film concentrator

I continuous feeding and discharging, stable system and convenient operation During the operation of this series of equipment, it is only necessary to adjust all parameters according to the requirements at the initial stage of feeding, at the same time, to ensure the continuous and stable supply of materials, convenient adjustment, continuous and stable concentration, to meet the requirements of qualified specific gravity, and to recover the solvent at the same time 2 The concentration ratio is significant (up to 1.25-1.2.8), the thermal efficiency is high, and the energy saving effect is significant In terms of the structure of the system, we adopt the optimized design scheme to make the evaporation heat transfer coefficient reach 3400-3800w (㎡ K), which is very suitable and advantageous for the concentration of the extract of traditional Chinese medicine The main reason is the rapid film-forming flow of materials in the heating tube, and the same reason is that the heating temperature difference is small (only 8-10 ℃) ）The evaporation temperature is low, the material can form fast flash after entering the evaporator, the residence and heating time of the liquid medicine in the heating pipe is short, the viscosity of the material is widely applicable (50-500cp), the heating is uniform, and it is not easy to crystallize, precipitate and coking, the damage to the effective components is small, the heat energy is fully used, and the energy saving effect is significant 3 It is convenient to adopt advanced control methods Because the process of NLJ series concentration mainly takes the temperature of each effect as the control parameter, the parameters are stable when the system is running, it is convenient to use advanced automatic control (PLC and human-machine interface control), and the cost of control equipment is relatively low, which is more convenient for the realization of full-automatic control in the production of traditional Chinese medicine The structure design of the three-way down mold concentrator is advanced and reasonable In terms of structure, we adopt the optimized design scheme For the distribution of feed liquid and the flow in the pipe, we adopt the advanced liquid distribution device, so that the material can enter each heating pipe evenly At the same time, we choose the imported inner wall mirror tube as the heating pipe, so that the flow resistance of the material in the pipe is small, the speed is fast, and it is not easy to precipitate and scale In order to improve the yield of concentration, the system is equipped with advanced mist catcher, which has strong ability to eliminate entrainment of mist The separation efficiency can reach 96-99%, and the resistance drop is small.