High-efficiency alcohol recovery tower structure and main features:
The high-efficiency alcohol recovery tower system consists of a heater, an evaporator, a packed column, a
Condenser, a high-efficiency cooler, a collection tank, a vacuum system, and the like. The equipment is made of austenitic stainless steel SUS304, and the surface in contact with the liquid is polished or acid-washed and passivated to meet GMP requirements.
The jacketed external circulation type high-efficiency evaporator is used as the tower kettle heating evaporation device, and the evaporation efficiency is superior to the traditional "U"-type tube heating kettle, and the thermal efficiency thereof is greatly improved. Under the same heating area, the evaporation speed can be increased by 1~2 times, and the tower can be automatically cleaned without disassembly and easy to operate.
The vapor-liquid separator of the evaporator prevents the liquid from being entrained by the secondary steam to form a running material.
The stainless steel corrugated packing is used in the
Packed Tower, which greatly improves the fractionation efficiency of the packed tower, thereby improving the efficiency of the whole tower. Save energy by 20~30%. The filler is easy to clean, is not easy to scale, does not slag, and the flow passage of the tower body is not easy to block, and the operation is stable and reliable.
How the alcohol recovery tower works:
The material enters the evaporator tangentially from the inlet and is continuously and evenly distributed on the inner wall of the evaporation cylinder through the distributor. The liquid is added to the critical boiling, and some of the solution is vaporized, so that the thermal energy is converted into the kinetic energy of the upward movement, and at the same time, due to the evaporation cylinder There is a large difference in gravity between the unheated liquid in the vapor-liquid mixture in the body, and the natural circulation of the liquid is generated under the action of the expansion kinetic energy and the difference in gravity. Until the vapor-liquid mixture is evaporated. The secondary steam evaporated from the evaporation cylinder rises to the separation cylinder, and the gas-liquid separator installed therein separates the droplets or foam which may be carried by the secondary steam, and the secondary steam is led out from the outlet of the upper end into the evaporator. After further fractionation, the rectification column is condensed and cooled by a condenser, a cooler, and then collected into a liquid collection tank. The collected ethanol can be partially refluxed to the top of the alcohol recovery tower for further purification, and partially enters the finished ethanol container. The size of the return flow is adjusted according to the concentration of the feed and the concentration of the discharge.
July 19, 2022
