Silo-type mixer

In the bulk materials industry, the terms ‘silo mixer’ and ‘mixing silo’ are used interchangeably. Silo mixers operate on various mixing principles, such as mechanical agitators, shear mixers, pneumatic circulation systems or recirculating conveyance. The aim is to equalise concentration differences in the bulk material, reduce segregation and achieve a uniform product composition throughout the entire silo.

In process engineering, silo mixers are used when large quantities of product need to be homogenised or when continuous processes require a uniform composition of the discharge.

They influence the mixing quality, discharge behaviour and process stability and are particularly relevant in the chemical, food, building materials and plastics industries.

A silo mixer is a mixing system within a silo-like container, where the focus is on process intensity. A silo mixer is primarily a technologically sophisticated mixer for bulk materials.

Externally, it resembles a silo and is equipped with mixing tools capable of sufficiently homogenising bulk materials. It differs from the so-called mixing silo, which primarily serves as a storage container and whose secondary function is the approximate homogenisation of the silo contents.

Technical features of the silo mixer:

• The mixing process takes place throughout the entire product volume.
• Often suitable for both continuous and batch operation.