Distillation device used for chemical production

Abstract

The invention discloses a distillation device used for chemical production. The device comprises a hollow cavity, preheating pipes, a liquid outlet cavity layer, a distillation tank and a liquid inletcavity layer; the hollow cavity is arranged on the inner side of the top of a device outer shell, the top of the liquid inlet cavity layer is provided with gas outlet pipes distributed in an array manner, the upper end of each gas outlet pipe is connected with the hollow cavity, and two liquid adding pipes are arranged on the left and right sides of the liquid inlet cavity layer; each preheatingpipe is provided with one inner layer pipe, each outer layer pipe sleeves one corresponding inner layer pipe, one heating wire is arranged between each inner layer pipe and one corresponding outer layer pipe, and the interior of each inner layer pipe is provided with one corresponding rotating shaft; the bottom of the liquid outlet cavity layer is provided with aeration heads distributed in an array manner; and the interior of the distillation tank is provided with a liquid collecting cavity, the right side of the liquid collecting cavity is provided with third connecting pipes distributed inan array manner, the right side of each third connecting pipe is connected with one corresponding flow division distillation pipe, and the lower end of each flow division distillation pipe is providedwith one corresponding heating plate. According to the distillation device used for the chemical production provided by the invention, the heating area is increased, high-efficiency distillation is realized, the distillation time is shortened, the product has high purity, and preheating can avoid liquefaction in the gas phase mass transfer process.

Description

technical field [0001] The invention relates to a distillation device, in particular to a distillation device for chemical production. Background technique [0002] Distillation is a thermodynamic separation process. It utilizes the different boiling points of the components in the mixed liquid or liquid-solid system to evaporate the low-boiling components and then condense them to separate the entire components. There are two types of evaporation and condensation. A union of unit operations. Compared with other separation methods, such as extraction, filtration and crystallization, its advantage is that it does not need to use other solvents other than the system components, so as to ensure that no new impurities will be introduced. The relationship between human beings and chemical industry is very close, and it has spread to all aspects of life. In modern life, chemical products are inseparable almost anytime and anywhere. From material life such as clothing, food, hous...

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Problems solved by technology

[0003] At present, there are problems such as poor heating effect, long distillation time and low efficiency during large-volume distillation in chemical production

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