Apparatus and method for mixing, especially dispersing

Abstract

A device (1) for mixing, especially dispersing, comprises a housing (2) with at least one inlet (3). The device comprises a first treatment zone (4) for mixing of input materials, wherein the material can be fed into the first treatment zone (4) through at least one inlet (3). The device also comprises a second treatment zone (5) for sending the mixture to an outlet (6). Furthermore, the device comprises a first gap-forming element (7), preferably a rotating element, associated with the first treatment zone (4) and comprising a plurality of openings (8) and associated with the second treatment zone (5) and corresponding A second gap forming member (9) is attached to the first gap forming member (7) and is preferably a fixing member, wherein the second gap forming member (9) comprises a plurality of openings (10). At least one of the gap-forming elements (7, 9), preferably a rotary element, is designed to be rotatable relative to the other gap-forming element (7, 9) about an axis of rotation (11). The opening (8) of the first gap forming part (7) and the opening (10) of the second gap forming part (9) are arranged in such a way that the mixture formed by the input material can pass through the two gap forming parts (7, 9) The openings (8, 10) are fed from the first treatment zone (4) into the second treatment zone (5).

Description

technical field [0001] The invention relates to a device and a method for mixing, especially dispersing, according to the preambles of the independent claims. Background technique [0002] In practice, for example in the pigment industry, a predetermined amount of liquid is usually premixed with a predetermined amount of powdered solid, usually pigment. Such a mixture is then ground and dispersed further, if necessary also in an agitator mill. An exemplary industrial application is the manufacture of pigments and paints and the like. [0003] Mixing here refers to the merging of materials or material flows so that a composition as homogeneous as possible is obtained, and within the scope of the invention, mixing is used in particular for the production of dispersions, ie for dispersion. Dispersion here means a heterogeneous mixture of at least two substances which are not or hardly soluble in one another or chemically bonded. During dispersion, one substance (dispersed ph...

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Such screens can be prone to clogging and thus make unit maintenance more frequent

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