Feed Equipment Knowleagde

Different types of mixers have different mixing methods, and practice has proved that some mixed objects (materials) have the best mixing effect in a certain way, so according to the mixing target of different mixing objects and producers themselves ( Effect) to choose different types of mixers.

1. Physical properties of Raw materials
The closer the main physical properties between the materials to be mixed are, the smaller the separation tendency is, the easier it is to be uniformly mixed, the better the mixing effect, and the shorter the time required to achieve uniform mixing. The physical properties mainly include the particle size, shape, bulk density, surface roughness, flow characteristics, adhesion, moisture content, fat content, pH and so on. The particles with high moisture content tend to agglomerate or agglomerate, are not easy to be uniformly dispersed, and the mixing effect is unsatisfactory. Therefore, it is generally required to control the moisture content of the mixed material to not exceed 12%, and the mixing of the hygroscopic material is If the effect of the formulation is not affected, if necessary, silica or precipitated calcium carbonate may be added in an appropriate amount to improve the mixing effect.

2. Loading amount for mixer
The mixer mainly relies on convection mixing, diffusion mixing and shear mixing to make the material move in the machine to achieve uniform mixing of materials. Regardless of the type of mixer, the suitable loading amount is that the mixer works normally and An important prerequisite for achieving the desired results. If the loading is too much, the mixer will be overloaded. More importantly, too much loading will affect the cyclic movement of the materials in the machine, resulting in a decrease in the mixing quality.

3.Mixing time
In most compound feed lines, the most commonly used mixers are basically batch, while for batch mixers, there is also an optimum mixing time. If the mixing time is too short, the material will not be fully mixed in the mixer and will be discharged, and the mixing quality will not be guaranteed. The experiment proves that any material with good fluidity and uneven particle size has a tendency to separate. If the mixing time is too long, the material is over-mixed in the mixer. Will cause separation, also affect quality, and increase energy consumption. Because the mixing and separation are carried out simultaneously during the mixing of the materials, once the mixing and separation have reached a certain equilibrium state, the degree of mixing is determined, and even if the mixing is continued, the mixing effect cannot be improved, but the mixing is excessive. And the separation occurs. The mixing time is determined according to the combination of the model of the mixer, its manufacturing level, the physical properties of the material, and the actual test results. The length of time required for the simple model itself is not the same concept. The mixer will be used for a period of time and various parameters may change, so check the inspection regularly and adjust the time required for mixing according to the inspection results.