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Dynamic mixer with a seal

A technology of dynamic mixers and seals, used in fluid mixers, mixers with rotary stirring devices, mixers, etc., can solve the problems of changing the concentration of components, unusable mixers, residues, etc.

Active Publication Date: 2013-01-23
MEDMIX SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the embodiment according to document WO 2007 / 041878, it has proven to be disadvantageous that the components emerging in the gap between the cover plate and the mixer rotor through the inflow opening reach the gap between the sealing lip and the inner wall of the cover plate in, remains there and reacts uncontrollably with each other
This reaction changes the concentration of the components and impairs mixing efficiency and can cause inhomogeneity in mixing
When such components harden with prolonged contact, lumps (klumpen) form, which are undesirable in mixing and impair the quality of the mixture or render the mixture unusable
Such agglomerates, of sufficient size, can also impair the operation of the mixer by clogging the gap between the mixer rotor and the housing
Mixer therefore cannot even be used

Method used

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  • Dynamic mixer with a seal
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Examples

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Embodiment Construction

[0020] Figure 1 shows a dynamic mixer for various fluid components. The dynamic mixer 1 has a housing 2 and a rotor element 3 which is arranged rotatably about a rotor axis 8 in the housing 2 . In this embodiment, the housing 2 is constructed in two parts, said housing comprising a first housing part 4 in which there is an inlet for the components, and a second housing part 5 . The second housing part is used to create a mixture from the components of the plurality of fluids. As soon as the rotor element 3 is accommodated in the second housing part 5 , the first housing part is connected to the second housing part by means of a snap connection, snap connection or welding connection. The first housing part 4 has inflow openings 12 , 13 for at least one component in each case. The inflow openings 12 , 13 can have different diameters, depending on the desired mixing ratio of the components. The inflow openings open into corresponding inflow channels 10 , 11 which are arranged ...

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Abstract

A dynamic mixer (1, 100) for a plurality of fluid components contains a housing (2, 102) and a rotor element (3, 103) which is rotatably arranged in the housing, with the housing having one inlet opening (12, 13, 112, 113) for at least one component each and at least one outlet opening (20, 120). A ring-shaped intermediate space is provided between the rotor element and the housing in which a mixing element (7, 107) connected to the rotor element is arranged. A seal (35, 45, 60, 61) for sealing the rotor element in the mixer housing is provided at the bearing location of the rotor element in the housing.

Description

technical field [0001] The invention relates to a seal for a dynamic mixer. Such dynamic mixers are used in particular when mixing viscous or pasty components, such as molding compounds, two-component adhesives or sealing compounds in the dental field. Background technique [0002] WO 2007 / 041878 discloses a dynamic mixer for mixing components with different volume percentages, in particular a dynamic mixer for the production of molding materials for dental impressions. An antechamber is arranged in the interior of the mixer housing, inside which the mixer rotor has distribution bodies for distributing the components around the axis of rotation of the mixer rotor, in order thereby to achieve an inter-component The correct mixing ratio and avoid air impurities. Next, the pre-mixed components pass through at least one through opening to the main chamber for thorough mixing of the components. [0003] Since the components react with one another and harden in the mixer when t...

Claims

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Application Information

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IPC IPC(8): B01F5/06B01F15/00B01F27/906
CPCB01F7/00125B01F2215/0027B01F7/00641B05C17/00566B01F7/00141B01F7/18B05B7/04B01F13/0023B01F27/0722B01F27/0724B01F27/192B01F27/213B01F33/50112B01F27/90B01F2101/19
Inventor V.加特曼P.洛伊厄
Owner MEDMIX SWITZERLAND AG