A kind of esterification kettle with double head shaft

Abstract

The invention discloses an esterification kettle with a double-end shaft. The esterification kettle with the double-end shaft comprises a barrel-shaped kettle body, a stirring shaft communicated in the horizontal direction is arranged on the barrel-shaped kettle body, the first end of the stirring shaft extends out of the barrel-shaped kettle body, the first end of the stirring shaft and a drive motor is ganged through a shaft coupling, a shaft shoulder and a key slot structure which are matched with the shaft coupling are arranged at the first end; the second end extends out of the barrel-shaped kettle body and is provided with a reserved section, and a shaft shoulder and a key slot structure which are the same as that of the first end are arranged on the reserved section. According to the esterification kettle with the double-end shaft, the additional reserved section is arranged at the second end of the stirring shaft, and the shaft shoulder and the key slot structure which are the same as that of the first end are arranged on the reserved section, so that when the first end is fractured, the stirring shaft can be used unceasingly through shifting the direction of the stirring shaft, the service life of the stirring shaft is prolonged for another half of the service life, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of dyestuff production equipment, in particular to an esterification kettle with double-headed shafts. Background technique [0002] Esterification reaction is a kind of organic chemical reaction. It is the reaction of alcohol with carboxylic acid or oxygen-containing inorganic acid to form ester and water. It is divided into two types: the reaction of carboxylic acid with alcohol and the reaction of inorganic oxyacid with alcohol. The esterification reaction of carboxylic acid with alcohol is reversible, and generally the reaction is very slow, so concentrated sulfuric acid is often used as a catalyst. Polycarboxylic acid reacts with alcohol to generate various esters. The reaction between strong inorganic acids and alcohols is generally faster. The typical esterification reaction is the reaction of ethanol and acetic acid to produce ethyl acetate with aromatic smell, which is the raw material for the manufacture o...

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Problems solved by technology

When the esterification reaction is carried out in the traditional esterification kettle, the dispersion effect of the material is not good, and the material is easy to agglomerate and easily adhere to the inner wall of the kettle and the stirring shaft. If it is attached to the stirring shaft, it is easy to cause the breaking of the stirring shaft. Therefore, the traditional esterification kettle is often shut down due to the breakage of the stirring shaft and poor discharge due to the material forming large pieces and hanging on the wall during the production process.

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