he gear unit housing dimension n from Chapter T B4-CH-15-D Bevel-helical gear reducer B4

Flender/Flender Gear Units/Bevel-helical gear reducer B4

that passes over the sieve exits the sieve through another opening in the outerframe. Material feed inlet for each section is located at the top of the section, whereas the outlets are at the bottom. There is generally one inlet per section as each section handlesa given type of material. However, sometimes section may be divided to handle two different types of material when the quantities being handled are much less and, then, there will be two inlets located at the top at two opposite ends. The ground material issifted into at least two, and as high as seven different fractions, depending on the material;therefore, there are anywhere from two to seven outlets per section. These inlets andoutlets are part of the sifter and thus swing with the sifter as the sifter is rotating. Their Grain-Milling Operations 2 connection with the corresponding spouts, which are xed, is done by cotton sleeves (stockings). 3.3.3.1 Operation The material for sifting is allowed to enter the sifter section through the feed inlet at the top. As the material reaches the top of the sieve stack the sifting operation begins by separating the material into number of fractions according to size. Channels within thesifter section and within the sieve frames and the outlet frame allow guiding of the sepa-rated fractions out of the sifter section. The outlets from the outlet frame are connected to spouts at the bottom through which the sifted fractions are appropriately directed to their destinations. 3.3.4 Puriers Sifters are used to sift ground material into several fractions that are graded according to size, for it uses sieves of varying screen sizes as separating medium. Each graded frac-tion, especially, the granular fraction following sifting, consists of similar-sized particlesof Pure endosperm Composite particles of endosperm and brangerm attached to each otherBran Puriers facilitate further separation of the sifted graded stock of similar size into pure endosperm, composite, and bra