Static mixer for mixing at least two components with an exchange element

A static mixer for mixing together at least two components, comprising:

• a mixer housing;
• a mixing element having a longitudinal axis, an upstream end and a downstream end and being arranged at least partly within the mixer housing, the mixing element comprising a plurality of mixing bodies arranged one after another along the longitudinal axis so as to be capable of repeated separation and re-combination of streams of the components to be mixed,
• each of the mixing bodies comprising
• a first inlet and a second inlet,
• a first and a second lateral outlet and an intermediate outlet disposed between the first and the second lateral outlet,
• an input wall separating the first inlet and the second inlet and extending in the direction of the longitudinal axis,
• a deflection element arranged downstream of and adjacent to the input wall and extending transverse to the input wall at both sides of the input wall,
• a first output wall and a second output wall arranged downstream of and adjacent to the deflection element, and extending in a direction of the longitudinal axis and being spaced apart, the first output wall separating the first lateral outlet and the intermediate outlet and the second output wall separating the intermediate outlet and the second lateral outlet,
• the deflection element comprising a first opening, a second opening and a third opening, each opening of the first, second and third openings extending through the deflection element from an upstream side of the deflection element to a downstream side of the deflection element, the first opening being arranged at a first side of the input wall and connecting the first inlet with the intermediate outlet, and the second and the third opening being arranged at a second side of the input wall and connecting the second inlet with the first and the second lateral outlet;
• an exchange element arranged between two successive mixing bodies, the exchange element comprising a further deflection element extending transverse to the longitudinal axis and positioned and sized to prevent a stream of the components exiting the first lateral outlet from flowing through the exchange element in the direction of the longitudinal axis and to deflect the stream in a direction transverse to the longitudinal axis towards the second lateral outlet.