The mixer is a machine that uses mechanical force and gravity to evenly mix two or more kinds of materials. Today, mixers are widely used in pharmaceutical, food, chemical, agriculture, construction and other industrial production and daily life. In the actual production process, many users will focus on the mixing uniformity of the mixer, which factors will affect the mixing uniformity?
1. Liquidity. The fluidity of the powder is poor, and the adhesion between particles is not conducive to the movement and convection of the powder into each other, and other powders are not easy to mix evenly.
2. Particle size. The coarse powder has good compressibility, but poor formability. The formability of fine powder particles is good, but the compression performance is poor, so the filling performance, compression performance and sintering performance of powder can be improved by appropriate matching of small and medium-sized particles. However, the larger the size difference of powder particles, the more difficult it is to mix.
3. Loose packing density. The greater the difference in bulk density, the more difficult it is to mix. Light powder with loose density is easy to float, floating on the top when mixing, it is difficult to mix into the components of heavy powder, and it is not easy to mix evenly.
4. Particle form. The particles with irregular shape and non-smooth surface are not easy to mix evenly, but the spherical particles with smooth surface that are easy to maintain a uniform mixing state are too fluid and easy to separate.
The above are the factors that affect the mixing uniformity of the mixer. If the mixing uniformity is required to be higher, the mixing uniformity can be assessed according to a certain proportion of sampling and detection methods to meet the requirements.
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