Alcohol recovery tower

Abstract

The invention relates to an alcohol recovery device, in particular to an alcohol recovery tower, which has a high recovery speed and high recovery purity and is economical and durable. The alcohol recovery tower comprises a distillation tower kettle (1), a distillation tower body (4), a high-level storage tank (6), a centrifugal pump (7), a condensation cooler (8), a filter (13), a preheater (9) and a vacuum storage tank (10), wherein the distillation tower body (4) is arranged above the distillation tower kettle (1); a heating pipe (2) is arranged inside the distillation tower kettle (1); two steam inlets (3) are symmetrically formed at the bottom of the distillation tower kettle (1); a filler (5) is arranged in the distillation tower body (4); one side of the distillation tower body (4) is connected with the high-level storage tank (6) provided with the centrifugal pump (7) through a pipeline; the other side of the distillation tower body (4) is connected with the condensation cooler (8) through a pipeline; the preheater (9) is arranged between the high-level storage tank (6) and the distillation tower body (4), and a steam heating way is adopted for the preheater (9); the vacuum storage tank (10) is arranged below the condensation cooler (8); one side of the vacuum storage tank (10) is provided with a vacuum pump (11); and the bottom of the vacuum storage tank (10) is provided with an alcohol outlet (18).

Description

technical field [0001] The invention relates to an alcohol recovery device, in particular to an alcohol recovery tower. Background technique [0002] The alcohol recovery tower is mainly used for the recovery of dilute alcohol in the pharmaceutical, food, chemical and other industries, and can also be used for the distillation of other dissolved coal such as methanol. It mainly uses the principle that the boiling point of alcohol is lower than the boiling point of other solutions, and uses a temperature slightly higher than the boiling point of alcohol to heat and volatilize the dilute alcohol solution to be recovered, and refine the tower body to increase the concentration of alcohol to achieve the recovery of alcohol. Purpose. [0003] Alcohol recovery towers currently used in pharmaceutical, food, light industry, chemical and other industries are generally composed of tower kettle, tower body, high-level storage tank, condenser, and cooler. The dilute alcohol that needs ...

AI Technical Summary

Problems solved by technology

When using this type of alcohol recovery tower for alcohol recovery, there are often many problems. For example, the dilute alcohol stock solution that needs to be recovered is not further filtered, and it is easy to bring some unnecessary impurities into the subsequent recovery process, affecting the entire process. The efficiency and effect of recovery will also affect the concentration of alcohol after recovery; and the usual way is to send the dilute alcohol stock solution directly into the tower kettle, which makes the dilute alcohol stock solution entering the tower kettle not evenly distributed on the packing On the one hand, it will affect the recovery rate, on the other hand, the filler cannot be fully utilized, resulting in unnecessary waste, and the service life of the filler will be correspondingly shortened, which requires frequent replacement of the filler. It is equivalent to increasing the cost of recovery of dilute alcohol stock solution

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