Keeping sifters in good working order: Production of flour depends on the proper selection and maintenance of the right sifter and slewing material

摘要

Sifters may be the most misunderstood and underappreciated machine in the milling system. Roller mills are considered by many to be the workhorse and the heart of any milling system. However, the production of flour, or nearly any ground product, depends on the proper selection and maintenance of the right sifter and sieving material. Sifters come in many shapes and sizes. Multiple-section, gyratory sifters swinging from the ceiling are the most common sifter in most modern flour mills. While one product goes into a sifter, two or more products come out. A sifter can be used as part of the quality assurance program or as an integral part of the production process. It can be used to remove coarse material, separate fines or grade material into multiple streams. To keep a sifter working as it was designed requires maintenance both inside and out.