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How to find the cause of mixing bad uniformity 

First, to participate in the mixing powder problems
        From the following questions to find out whether the powder itself is difficult to mix.
        1, Light and heavy powders
        Difficult to uniformly mix light and heavy powder is a classic mixing problem in the mixing process due to the tendency of the heavy powder to sink and the tendency of the light powder to float.
        2, Ultra-fine powder is not easy to mix.
        Ultrafine particles are very small, weakly bound by gravity, as easily as superfine powders in mixed motion, and are therefore very difficult to be uniformly mixed into the bulk powder.
        3,Too good liquidity powder is not easy to mix.
        Good fluidity is also not easy to mix one of the reasons, it is because the particles in the mixed movement between the surface is too smooth, prone to light, heavy and large, small segregation phenomenon. Even after mixing, secondary unevenness will occur.
        4, Too bad liquidity is not easy to mix.
        Poor fluidity is also one of the reasons that it is not easy to mix evenly because the surface between particles is too coarse to affect the ability to move between particles and slow the process of mixing evenly.
        5, Trace elements is not easy to mix the reasons
        Because the trace element content is too small (such as one-thousandth), while the role of trace elements is very important, the uniformity of the microelement mixing requirements are relatively high, so that the trace elements mixed full uniform dispersion to meet the end product Quality requirements. Therefore, the mixing task of trace elements will greatly increase the difficulty of mixing.
        6, Board knot, fake particles, Baotuan other reasons
        If you participate in the mixing of the powder particles have a knot, fake particles, hold the ball and other phenomena, directly involved in the mixing is difficult to achieve the purpose of uniform mixing. The reason is that most hybrid equipment does not have the ability to break up agglomerates, fake particles and the like.
Second, find the use of hybrid equipment can meet the powder mixing requirements
        1, Choose two-dimensional mixer problems
        From the working principle of two-dimensional mixer analysis: the movement mode is simple, low exercise intensity, so its mixing capacity and mixing efficiency is poor, only to meet a very simple mixing tasks, it is difficult to play a more complex mixing tasks.
        2, The choice of three-dimensional mixer, V-mixer and double cone mixer problems
        The mixing principle of these three kinds of mixers is mainly the principle of gravity diffusion. In terms of mixing, the powder with good mixing conditions (such as particle size, specific gravity and moderate fluidity) can basically achieve the purpose of mixing uniformly. If there are mixing problems (such as light, heavy powder is not easy to mix problems), such mixer is difficult to achieve the purpose of mixing evenly.
        3, The choice of ribbon mixer and single cone mixer problems
        The mixing principle of these two kinds of mixers is mainly the principle of forced shear mixing. Since the working principle of the mixer analyzes the dead spots of the materials, it is difficult to achieve the purpose of uniform mixing when the powder containing the trace elements is mixed.
        4, the choice of dual-motion mixer can solve many of the problems in the mixed work
       From the analysis of the working principle of the double-motion mixer, the mixing principle is the mixing principle of gravity diffusion hybrid superposition forced shearing type mixing. Therefore, the choice of such a mixer can solve such as:
           ① light, heavy powder is not easy to mix the problem;
           ② difficult to mix ultra-fine powder problem;
           ③ difficult to mix trace elements difficult problem;
           ④ poor mobility difficult to mix difficult problems;
           ⑤ mixing difficult, mixing a long time mixing tasks.