1. Definition and forces at play

1.1 Definition of a stirring system

A stirring device (figure 1 ) consists of :

• a drive system ;

• of a tree ;

• one or more moving parts.

The mechanical calculation must take into account two types of stress.

• Agitator environment constraints

  These constraints depend on :

  • of the tank on which the agitator is installed ;

  • operating conditions;

  • of the products to be mixed.

  ...