Newbie seeking advice—when designing a mixer, is it necessary to design the mixing components first and then the reactor?
Thread Content
By looking at information related to mixing, it was found that there are many components involved in mixing – things such as mixing shafts, drive shafts, impellers, and frames, all of which have corresponding standards. In particular, I don’t understand the fact that there are standards regarding the length of the drive shaft extending into the reactor. Does this mean that the dimensions of the mixing components are determined based on these standards, and only after that is the height, diameter, and other dimensions of the reactor designed and calculated? If that’s the case, then wasn’t there a problem with choosing the diameter of the mixer impeller based on the diameter of the reactor? I would like to ask the experts: what is the correct way to design the mixing steps? .
This design process is generally like this. General engineering companies provide parameters such as the tank dimensions, properties of the materials, and mixing requirements. Based on this information, we first determine the power levels, rotation speeds, paddle types, and paddle diameters required for chemical processing; subsequently, from these data, we determine the shaft diameter and other mechanical specifications. Sometimes, when there is a lot of cooperation, the client will directly ask for the total volume of the tank body, and we then provide them with a complete set of parameters regarding the height-to-diameter ratio of the tank body.
Under normal circumstances: generally, the reactor is designed first, followed by the mixing system!
This is relatively simple: first, there needs to be a tank, and then a mixer; the design of both the tank and the mixer must meet the process requirements. For mixing design, one must first consider the purpose of mixing; select an appropriate impeller type based on the properties of the medium, and then carry out power calculations, selection of reducers, and strength checks.
First, design the reactor, and then determine the structure of the stirring mechanism based on your materials, temperature, pressure, and reaction requirements；
What is the standard for the depth of the stirring shaft?