Chemical production liquid separation monitoring method, liquid separation integration device and liquid separation method thereof

Abstract

The invention discloses a chemical production liquid separation monitoring method, a liquid separation integration device and a liquid separation method thereof. The method comprises the following steps: obtaining separated liquid flowing out of a liquid taking opening of a reaction kettle; carrying out visual identification and / or conductivity detection on the separated liquid flowing out of the liquid taking opening of the reaction kettle; when the visual identification parameter of the separated liquid is the color-pigment proportion value of the preset fixed area and / or the conductivity parameter is the preset fixed value, the separated liquid is discharged completely, and liquid separation is completed; according to the invention, automatic acquisition, automatic identification, quantitative analysis and judgment, remote control and real-time monitoring and detection of the separated liquid can be realized, the separation process of the liquid needing phase separation can be mastered in real time through two basic methods of visual identification and conductivity judgment, and various liquid phase discrimination of changes of visual and other properties and the like can be realized; and the liquid separation process is automatic and intelligent, the trouble of manual operation is reduced, the working efficiency is improved, and the harm of manual liquid separation to people is completely eradicated.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a liquid separation monitoring method for chemical production, a liquid separation integration device and a liquid separation method. Background technique [0002] The liquid separation process of all reactors and post-treatment tanks now relies on manual operations. exist: [0003] (1) Insufficient number of employees or unreasonable arrangements caused liquid dispensing to be untimely. The production completion time of each kettle is uncertain, and the liquid separation after the production is completed depends entirely on the staff's eye observation and manual liquid separation. Due to the long liquid separation time, poor environment, and heavy smell, after the production is completed, they usually stay in the kettle first, and wait for the employees to have time to carry out liquid separation, which seriously affects the timeliness of liquid separation and causes product...

AI Technical Summary

Problems solved by technology

Due to the long liquid separation time, poor environment, and heavy smell, after the production is completed, they usually stay in the kettle first, and wait for the employees to have time to carry out liquid separation, which seriously affects the timeliness of liquid separation and causes production failure. Continuity has become an important factor restricting the increase of output

[0004] (2) Due to relying on the observation of personnel's eyes, the operator's experience is different, which will inevitably cause the risk of incomplete or excessive liquid dispensing

Reactors and post-processing kettles are mainly divided into organic phase, intermediate layer, and aqueous phase. The liquid separation is completely based on the judgment of the staff's eye experience, and the valve is manually closed. The difference in each employee's experience is different for the organic phase, intermediate layer, and aqueous phase. The judging criteria are also different, and due to the difference in on-site light, daytime and night vision, and long-term observation, visual fatigue results in incomplete or excessive liquid separation.

[0005] (3) The liquid separation time of the post-treatment tank is long, the environment is poor, the smell is heavy, and some products are highly allergenic, which leads to physical injury of employees and becomes an important factor for employee turnover.

Common chemical solvents include tetrahydrofuran, n-heptane, toluene, formic acid, etc., all of which are toxic solvents or have a strong pungent smell, which makes employees unwilling to manually separate liquids, which has a psychological and physical safety impact on employees, resulting in employee turnover high rate

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