Methanol rectification tower

Abstract

Relating to the technical field of chemical production equipment, the invention discloses a methanol rectification tower. The methanol rectification tower includes a tower body, the bottom end of which is welded with a kettle body and is communicated with the inner cavity of the kettle body, and a reboiler is fixedly installed in the kettle body, a liquid outlet end of a liquid phase pipe is inserted to one side of the kettle body top, and the inner cavity of the liquid phase pipe is communicated with the inner cavity of the kettle body, an air inlet end of a gas phase pipe is inserted to the top of the tower body, and the inner cavity of the gas phase pipe is communicated with the inner cavity of the tower body, and a sieve plate mechanism is fixedly installed close to the bottom inside the tower body. Through the setting way of connecting troughs and arc-shaped troughs, the methanol rectification tower can achieve ordered liquid turbulent motion on a circular plate surface, thus further promoting gas-liquid phase contact and rectification of methanol in the mixed liquid, at the same time gas can drive the rotation of arc-shaped plates while flowing through circular sponges and a disc sponge, and through the cooperative setting of through-holes on the arc-shaped plates, the effect of erasing foams on a liquid surface can be reached.

Description

technical field [0001] The invention relates to the technical field of chemical production equipment, in particular to a methanol rectification tower. Background technique [0002] In the process of producing methanol in the chemical industry, in view of factors such as production cost, safety hazards and processing quality, the plate distillation column is a commonly used production equipment in the methanol production process. Its principle is mainly to heat the liquid mixture containing methanol to make it boil and gradually Vaporization, methanol and its mixture in the state of gas molecules gradually rise in the tower based on the density. The characteristic of the plate distillation tower is that multiple layers of partitions with through holes are set in the tower, so that when the gas passes through, due to the difference in boiling point, the The mixed gas molecules other than methanol condense on the surface of the plate body, so as to finally obtain methanol that ...

AI Technical Summary

Problems solved by technology

In the process of being blocked and gradually bursting, the foam forms relatively dense small foam aggregates, which are still attached to the grid plate, so that when the subsequent gas rises, it will still carry more foam attached to the surface of the grid plate, which is larger in industrial production. The amount of preparation further leads to the inability of this method to continuously ensure that methanol will not carry more foam when it is finally discharged

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