Blending silos are gravity blenders. Another prevailing term is homogenising silos instead of blending silos. Often the creation of horizontal layers with differing quality can be observed when silos are in batch production. Depending on the product characteristics and flow properties, different blenders are used in order to achieve a higher grade of homogeneity.
The pipes, arranged on the outer wall of the blending silo, have different nominal diameters. Because of the specially constructed product inlets, the product is pre-mixed both when it flows in and out of the mixing pipe. The different pipe diameters and lengths create a varying speed and flow profile in the pipes. This results in further product homogenisation.
The intensive mixing takes place in the lower silo part. The product is continuously collected from the cone by a central vertical mixing screw and conveyed upwards through the mixing pipe to the roof of the silo. The blended material is picked up by an ejector which distributes it in fine layers over the container’s entire width. The silo can be filled or discharged at any time irrespective of the blending process. The mixing screw is powered by a gear motor which is located in the middle of the silo roof.
To cover a wide range of bulk goods, our blending silos are available as aluminium and stainless steel models. In order to ensure a quick and economic mixing of bulk goods, we compare the required mixing level (homogeneity) and the required amount of time. We determine the most economic blending silo solution for you by choosing the right operating mode (continuous or discontinuous) and examining the product’s properties by running a bulk material analysis.