Xylene tower

Abstract

The invention relates to the technical field of material separation, in particular to a xylene tower which comprises a tower body, the top end of the tower body is fixedly communicated with an exhaust pipe, the interior of the exhaust pipe is connected with an isolation structure, and the top end of the isolation structure is connected with a protection structure matched with the exhaust pipe. The inner side of the tower body is connected with a pair of liquid distribution structures which are distributed up and down, a material limiting and gas guiding component is arranged between the pair of liquid distribution structures, each liquid distribution structure comprises a liquid distribution plate and a plurality of liquid distribution assemblies, the liquid distribution plate is provided with a plurality of liquid distribution holes, the plurality of liquid distribution assemblies are connected to the plurality of liquid distribution holes in a one-to-one correspondence manner, and the plurality of liquid distribution assemblies are connected to the liquid distribution holes in a one-to-one correspondence manner. According to the liquid distribution structure comprising the liquid distribution plate and the multiple liquid distribution assemblies, the material liquid can flow downwards along the liquid inlet ring and the inner wall of the liquid distribution hole, the contact area between steam and the material liquid is increased, and therefore material liquid separation is more uniform.

Description

technical field [0001] The invention relates to the technical field of material separation, in particular to a xylene tower. Background technique [0002] Xylene is an organic compound with the molecular formula C 8 h 10 , is a colorless and transparent liquid, and is a product in which two hydrogens on the benzene ring are replaced by methyl groups. There are three isomers, ortho, m, and p. In industry, xylene refers to the mixture of the above isomers. Tower equipment As the most common separation operation equipment, it is widely used in chemical, petroleum and other industries. The xylene tower is a device for separating o-xylene, m-xylene and p-xylene in mixed xylenes. The traditional xylene tower has low working stability and low separation efficiency. The reason is that the liquid distribution is unstable and uneven, so it needs to be improved. [0003] The publication number is CN107349616A Chinese invention patent discloses a xylene tower, which includes a skirt...

AI Technical Summary

Problems solved by technology

Based on the above search, combined with the existing technology, it is found that when the feed liquid passes through the filler, due to the large amount of feed liquid, it is easy to cause the gaps inside the filler to be completely filled with the feed liquid, and it is difficult for the steam to be fully distributed in the filler, resulting in the contact between the feed liquid and the steam. Insufficient, the separation efficiency is still relatively low

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