Technological structure of integrated evaporation tower capable of acquiring clean steam in energy-efficient manner

Abstract

The invention provides a technological structure of an integrated evaporation tower capable of acquiring clean steam in an energy-efficient manner. The technological structure comprises a forced material circulation system, an evaporation structure, a gas-liquid separation shell structure, a spiral centrifugal defoamer, a steam spiral centrifugal purifier, a heat insulator and a heat insulation cover. Materials enter the evaporation structure through the forced material circulation system to perform combined evaporation of flash evaporation, falling film evaporation and forced circulation evaporation, and evaporated secondary steam rises through a space channel enclosed by the evaporation structure and the gas-liquid separation shell structure and passes gas-liquid separation structures for gravity, secondary heating, centrifugation and the like in the rising process to obtain clean secondary steam. Unevaporated concentrated solution enters the bottom of a gas-liquid separation shell below the evaporation structure and continues forced circulation evaporation together with newly entering materials to be evaporated, and branch pipelines in the forced material circulation system serve as concentrated solution discharge pipelines for discharging the concentrated solution. The technological structure is high in energy-saving and evaporation effect, wide in operational condition adaptability, not easy to scale, compact in size and thorough in gas-liquid separation.

Description

technical field [0001] The invention belongs to the technical field of evaporation towers, and in particular relates to an integrated evaporation tower process structure capable of obtaining pure steam. Background technique [0002] The evaporation tower is a kind of concentration, purification and separation equipment. At present, the mainstream evaporation towers on the market include rising film evaporation towers, falling film evaporation towers and forced circulation evaporation towers. The rising / falling film evaporation tower has high evaporation efficiency but is not suitable for the evaporation of materials that are prone to fouling. Although the forced circulation evaporator is not easy to foul and adapts to a wide range of working conditions, the evaporation efficiency is low and the volume is large. The above three types of evaporation towers also have the problem of incomplete gas-liquid separation such as low purity of the evaporated secondary steam and even ma...

AI Technical Summary

Problems solved by technology

The rising / falling film evaporation tower has high evaporation efficiency but is not suitable for the evaporation of materials that are prone to fouling. Although the forced circulation evaporator is not easy to foul and adapts to a wide range of working conditions, the evaporation efficiency is low and the volume is large.

The above three evaporation towers also have the problem of incomplete gas-liquid separation such as low purity of the evaporated secondary steam and even material entrainment.

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