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Distillation column for regenerated solvent production with efficient cleaning

A distillation tower and cleaning technology, which is applied in the field of distillation towers for the production of regenerated solvents, can solve problems such as the working efficiency and working performance of distillation towers

Active Publication Date: 2018-08-14
NANJING KAIYAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the distillation process of the existing distillation tower, it will generate a certain amount of dirt in the packing layer in the distillation tower. When the thickness of the dirt is too large, it will affect the working efficiency and performance of the distillation tower

Method used

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  • Distillation column for regenerated solvent production with efficient cleaning
  • Distillation column for regenerated solvent production with efficient cleaning
  • Distillation column for regenerated solvent production with efficient cleaning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] like figure 1 and figure 2 A distillation tower for the production of regenerated solvent that can realize high efficiency and cleaning is shown, which includes a distillation tower body 1, the upper end of the distillation tower body is provided with a liquid inlet pipe 2, and the lower end of the distillation tower body 1 is provided with an air inlet A packing layer is arranged between the pipeline 3 and the liquid outlet pipeline 4 , and between the liquid inlet pipeline 2 and the liquid outlet pipeline 4 in the distillation tower body 1 . The packing layer includes a plurality of corrugated plates 5 parallel to each other and arranged radially along the distillation tower body 1; in the distillation tower body 1, any two adjacent corrugated plates 5 are provided with A liquid inlet pipe 2, which extends parallel to the width direction of the corrugated plate 5, and the lower end surface of each liquid inlet pipe 2 is provided with a plurality of liquid inlet hole...

Embodiment 2

[0027] As an improvement of the present invention, three spoilers 10 are arranged between the two adjacent corrugated plates 5, and each spoiler 10 extends obliquely downwards from its connecting end with the corrugated plates 5; A plurality of spoilers 10 on any two adjacent corrugated plates 5 are distributed alternately on the two corrugated plates 10 . With the upper design, it can be set through the direction and position of the spoiler, so that the distillation and cleaning effect of the distillation tower can be further improved, and at the same time, the residue of the liquid to be distilled and cleaning water at the position of the spoiler can be avoided.

[0028] The remaining features and advantages of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0030] As an improvement of the present invention, in the distillation column body 1, four auxiliary cleaning pipes 12 are arranged between two adjacent liquid inlet pipes 2, and the diameters of each auxiliary cleaning pipe 12 are sequentially arranged from top to bottom Increase. With the above-mentioned design, it can make the setting of the auxiliary cleaning pipeline not affect the spraying of the raw material to be distilled by the liquid inlet pipeline, and at the same time, it can carry out uniform airflow delivery at the corresponding positions of the multiple corrugated plates.

[0031] The remaining features and advantages of this embodiment are the same as those of Embodiment 2.

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PUM

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Abstract

The invention discloses a distillation column used in production of a regenerated solvent and capable of achieving high-effective cleaning. The distillation column includes a distillation column body. A liquid inlet pipe is arranged on the upper end of the distillation column body. A packing layer is arranged in the distillation column body and includes a plurality of corrugated plates. In the distillation column body, a liquid inlet pipe is disposed between any two adjacent corrugated plates. A plurality of liquid inlet holes are formed on a lower end surface of each liquid inlet pipe. The liquid inlet pipes are communicated with each other and are respectively connected to liquid transportation pipes and cleaning pipes which are extended to exterior of the distillation column body. The liquid transportation pipes are connected to a raw material tank and the cleaning pipes is connected to a cleaning water tank. In the distillation column used in production of the regenerated solvent, by means of the liquid inlet pipe structure, the distillation column can be switched between a mode of spraying a to-be-distilled liquid and a mode of spraying water for cleaning, thereby cleaning the corrugated plates in the packing layer on the premise that the pipeline structure in the distillation column body is avoided from being too complex.

Description

technical field [0001] The invention relates to a chemical production equipment, in particular to a distillation tower for producing a regenerated solvent capable of realizing high efficiency and cleaning. Background technique [0002] The distillation tower is one of the necessary equipment in the chemical production process, especially in the production process of the regenerated solvent, the processing effect of the distillation tower has a considerable influence on the performance of the product. During the distillation process of the existing distillation tower, certain dirt will be generated in the packed layer in the distillation tower. When the thickness of the dirt is too large, it will affect the working efficiency and performance of the distillation tower. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a distillation tower for the production of regenerated solvent, which can automatically realize effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/00
Inventor 夏杰刘雪江沙其勇贾云张赟董元峰
Owner NANJING KAIYAN CHEM