Dynamic mixer
Assignee3M Espe AG
InventorsHelmut Pauser, Ingo Wagner
Life of this patent
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Abstract
The invention relates to a dynamic mixer for mixing at least two paste components of different volume proportions. Said mixer comprises a housing with at least two inlet openings and at least one outlet opening, a mixer element being rotatably mounted in a mixing chamber of said housing. The housing has at least one delay chamber comprising a limiting wall that blocks the paste stream in the direction of flow and at least one opening that opens into the mixing chamber, said opening(s) being set back in relation to the limiting wall. The mixer is particularly suitable for mixing paste components with a relatively high viscosity of, for example, greater than 800 Pas.
Claims36
A dynamic mixer for mixing at least two paste components A and B, A having a higher proportion by volume than B, comprising a housing (9) with at least two inlet openings for A (2) and B (3) and at least one outlet opening (4), in which a mixing element (6) is rotatably mounted in a mixing chamber, the housing (9) having at least one delay chamber (10), which has a boundary wall (14) closing one end of the delay chamber, the boundary wall stopping the paste stream in the flow direction and at least one opening (13) which opens into the mixing chamber, this at least one opening (13) being set back in the delay chamber away from the boundary wall and towards the inlet opening.
A method for mixing at least two paste components A and B, A having a higher proportion by volume than B, comprising the following steps:a) discharging A and B from a container by using delivery pistons,) introducing A and B into a dynamic mixer which can be connected to a container, the mixer having a mixing chamber and a delay chamber which comprises a boundary wall closing one end of the delay chamber, the boundary wall stopping the paste stream in the flow direction, c) mixing A and B by using the dynamic mixer, d) discharging the mixture of A and B from the mixer, A being led into the delay chamber before being mixed and discharged with B, being backed up there and being able to get into the mixing chamber from the delay chamber via an opening which is set back in the delay chamber away from the boundary wall and towards the inlet opening.
A dynamic mixer for mixing first and second paste components, the first component having a higher proportion by volume than the second component, wherein the mixer comprises:
- a housing comprising a first inlet opening for the first component, a second inlet opening for the second component, and an outlet opening;
- a mixing element rotatably mounted in a mixing chamber;
- and
- a delay chamber in the housing, wherein the delay chamber comprises a boundary wall located at an end of the delay chamber distal from the first inlet opening, wherein the boundary wall stops a paste stream moving through the delay chamber in a flow direction and wherein the delay chamber also comprises a setback opening that opens from the delay chamber into the mixing chamber, wherein the setback opening is set back in the delay chamber away from the boundary wall and towards the first inlet opening, wherein a portion of the delay chamber is located between the setback opening and the boundary wall.
A dynamic mixer for mixing first and second paste components, the first component having a higher proportion by volume than the second component, wherein the mixer comprises:
- a housing comprising a first inlet opening for the first component, a second inlet opening for the second component, and an outlet opening;
- a mixing element rotatably mounted in a mixing chamber;
- and
- a delay chamber in the housing, wherein the delay chamber comprises a boundary wall that stops paste stream moving through the delay chamber in a flow direction and a setback opening that opens from the delay chamber into the mixing chamber, wherein the setback opening is set back in the delay chamber with respect to the boundary wall, and wherein the setback opening is located opposite the first inlet opening at least at one point.
A dynamic mixer for mixing first and second paste components, the first component having a higher proportion by volume than the second component, wherein the mixer comprises:
- a housing comprising a first inlet opening for the first component, a second inlet opening for the second component, and an outlet opening;
- a mixing element rotatably mounted in a mixing chamber;
- a delay chamber in the housing, wherein the delay chamber comprises a boundary wall that stops paste stream moving through the delay chamber in a flow direction;
- a setback opening that opens from the delay chamber into the mixing chamber, wherein the setback opening is set back in the delay chamber with respect to the boundary wall;
- and
- a boundary wall opening that opens into the mixing chamber adjacent the boundary wall, wherein the boundary wall opening is located between the setback opening and the boundary wall.
A dynamic mixer for mixing first and second components, the first component having a higher proportion by volume than the second component, wherein the mixer comprises:
- a housing comprising a first inlet opening for the first component, a second inlet opening for the second component, and an outlet opening;
- a mixing element rotatably mounted in a mixing chamber, wherein the mixing element rotates about a longitudinal axis extending through the housing;
- a delay chamber in communication wit the first inlet opening at one end of the delay chamber, the delay chamber extending along a curve about the longitudinal axis, wherein the boundary wall terminates at a boundary wall distal from the first inlet opening, and wherein the delay chamber extends over an angular range of no greater than 180°;
- a boundary wall opening that opens from the delay chamber into the mixing chamber adjacent the boundary wall;
- and
- a setback opening that opens from the delay chamber into the mixing chamber, the setback opening located between the boundary wall opening and the first inlet opening.
A dynamic mixer for mixing first and second paste components, the first component having a higher proportion by volume than the second component, wherein the mixer comprises:
- a housing comprising a first inlet opening for the first component, a second inlet opening for the second component, and an outlet opening;
- a mixing element rotatably mounted in a mixing chamber;
- a delay chamber in communication with the first inlet opening at one end of the delay chamber, the delay chamber extending along a curve about a longitudinal axis of the mixer and terminating at a boundary wall, wherein the delay chamber extends over an angular range of at least 90° and no greater than 180°;
- and
- a setback opening that opens from the delay chamber, the setback opening set back set back at least 90° from the boundary wall.
Dependencies are inferred from the claim text.