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Selection Of Body Material And Determination Of Geometrical Dimension Of The Stirred Reactor In The Jacket Mar 14, 2018

In the mixing reaction kettle of the jacket, the body of the kettle mainly includes the head, the cylinder body and the three parts of the clamp. The head covers a variety of structural forms, such as elliptical heads and conical seals. The upper and lower heads and cylinders are usually connected by means of welding.

 

In the production of the jacket stirred reaction kettle body, the first is to select the appropriate material. Under normal circumstances, in the selection of the jacket stirred reaction kettle head, cylinder and jacket materials, mainly in combination with the process parameters and operating conditions to consider. Generally more commonly used kettle body material includes 0cr18ni9 and jacket material selection q235-b, hot-rolled steel plate and so on.

 

Q235-b materials are generally used in the temperature of 20 , tensile strength: 370-500mpa, elongation: 26% (thickness below 40mm), widely used in the regular, low-pressure pressure vessels of the cylinder, strengthening plates, bearings and other aspects of the material selection.

 

and 0cr18ni9 material has good cold, hot processing performance, but also has enough resistance to intergranular corrosion, so it is widely used in chemical equipment, industrial equipment, often, low-pressure pressure vessels, such as the barrel of mixing reaction kettle and other aspects of material selection. So, how to determine the size of the vessel body in the mixing reaction kettle of the jacket? The size of the kettle body is mainly composed of the inner diameter and height of the cylinder. First of all, the size of the kettle body should be able to meet the requirements of chemical technology.

 

For the reaction kettle with stirrer, the volume is a main determining parameter. It is necessary to note that in the selection of the inner diameter of the barrel of the stirred reactor, it is necessary to take into account that the general stirring power is proportional to the five times of the agitator diameter, and the agitator diameter is often increased with the increase of the diameter of the pot body.


In addition, for the fermentation of materials, such as the jacket mixing reactor, in order to make access to the air and fermentation liquid full contact, the need for a certain level of liquid level, the height of the cylinder should not be too short.

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