Agitating vessel applied to diazo-reaction

Abstract

The invention provides an agitating vessel applied to a diazo-reaction. The agitating vessel applied to the diazo-reaction comprises a vessel body, a vessel cover, an agitator, a motor, a temperature detector and a PH value detector; a discharge port is formed in the bottom of the vessel body, and a jacket is arranged at the outer part of the vessel body; a feed port, a pressing pump sampling device, a display and an air outlet are sequentially arranged on the vessel cover from left to right; the agitator extends into the vessel body, and the upper end of the agitator is connected with the motor, the agitator comprises a stirring rod, an upper-layer blade and a lower-layer blade; the temperature detector is arranged on an agitating rod between the upper-layer blade and the lower-layer blade of the agitator; the PH value detector is arranged under the temperature detector; the temperature detector and the PH value detector are separately arranged on the agitating rod between the upper-layer blade and the lower-layer blade of the agitator, and the detecting result is more accurate; due to the arrangement of the pressing pump sampling device, the sampling is more flexible and is quantitatively controllable; and the agitating vessel is simple in structure, convenient in operation, reasonable in design and high in degree of automation, and has a wide application prospect.

Description

technical field [0001] The invention relates to a stirring device, in particular to a stirring tank applied to a diazotization reaction. Background technique [0002] At present, the common stirred tank on the market is composed of a stirrer and a tank body. The stirrer includes a transmission device, a stirring shaft (including a shaft seal), and an impeller (stirring paddle); the tank body includes a cylinder, a jacket and internal parts. There are hundreds of types of stirred tanks used in industry, which can be divided into two categories: homogeneous reactors and heterogeneous reactors according to the phase state of the reaction materials. Heterogeneous reactors include solid-liquid reactors, liquid-liquid reactors, gas-liquid reactors and gas-liquid-solid three-phase reactors. Stirred tank reactors are commonly used in the research and application of microbial fermentation and chemical synthesis. Studies have shown that more than 50% of chemical processes are interm...

AI Technical Summary

Problems solved by technology

For example, in the prior art, the temperature detector is generally arranged in the upper space of the kettle body through the kettle cover. In order to avoid collision with the stirring paddle, the temperature detector can only detect the temperature of the upper material in the kettle body, and cannot detect the temperature of the intermediate material. Similarly, the current pH value detector is also in a similar situation, which has a particularly obvious impact on heterogeneous reactions, and cannot accurately reflect the reaction conditions of the system.

In addition, regular sampling is required in the middle of the reaction to detect the end point of the reaction. However, the current regular sampling operation is also very cumbersome. It is necessary to open the sampling port and perform manual sampling by hanging the sampler on a thin rope. The most common sampler It is the bullet plastic tube. Because of its light material, it sometimes floats on the surface of the material, causing problems such as inconvenient sampling and insufficient sampling volume.

Because the reaction system is relatively viscous, the stirring effect of the current common specifications of the stirring paddle is not good, and side reactions are prone to occur

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