Mixing methods also include artesian mixing and mechanical mixing. Self-flow mixing refers to the movement between materials, which achieves uniform mixing through self-friction, and mechanical mixing refers to the uniform mixing of materials through mechanical coercion. General gas mixing is self-flow mixing, and the mixing of three-dimensional mixer is a combination of self-flow mixing and mechanical mixing. Mixing in which the mixing vessel does not move during mixing is mechanical mixing. the

The production of the additive premix by the mixer should follow the method of gradually expanding the mixing from micro mixing to small mixing to medium mixing and then to large mixing. the

The correct order of adding materials to the mixer should be: the components with a large proportion are added first or most of them are added to the machine, and then a small amount and trace components are added to it; among various materials, generally the large particle size The components of the specific gravity are added to the mixer first, and then the ones with small particle sizes are added; when the specific gravity difference between materials is large, the materials with small specific gravity are generally added first, and then the materials with large specific gravity are added. the

For the fixed container mixer, the mixer should be started first before feeding, and there will be no full-load start-up phenomenon, and the machine must be unloaded before stopping; while the rotary container mixer should be started after feeding, stop first, and then unload. Material; for the V-type mixer, the material should be fed from two feed ports respectively. the

The mixing of liquid mainly relies on mechanical agitator, air flow and jet flow of the liquid to be mixed, so that the material to be mixed is stirred to achieve uniform mixing. Agitation causes part of the liquid to flow, and the flowing liquid pushes the surrounding liquid, resulting in a circulating liquid flow in the container. The resulting diffusion between the liquids is called bulk convective diffusion. When the agitation-induced liquid flow velocity is high, shearing occurs at the interface between the high-speed liquid flow and the surrounding low-speed liquid flow, resulting in a large number of localized eddies. These vortices spread around, and the liquid is drawn into the vortex, and the disordered convective diffusion formed in a small area is called eddy current diffusion. the

Measures should be taken to minimize the influence of other factors on the mixing uniformity of the mixed materials: the mixed materials are pressed into granules, so that the ingredients of the materials are fixed in the granules or directly packed in bags; the transportation and transportation of the mixed materials are minimized. The drop; the loading and unloading work after mixing should be reduced; the falling, rolling or sliding of materials should be minimized; the storage bin after mixing should be as small as possible.