the gear units Overview tables Type H Nominal po B2-SV-16B Bevel-helical speed reducers B2

Flender/Flender Gear Units/Bevel-helical speed reducers B2

ll, machine that uses rotor with nger beaters running enclosed within perforated sheet metal cover, can be quite helpful. This is followed by aspiration for removal of the loosened material. At this point the barley is clean and ready for further processing. 1.2.3 Tempering or ConditioningBarley is generally processed without any addition of water because it is naturally soft. There are, however, some varieties grown in different parts of the world, such as in North Africa, that are extremely hard and very low in moisture. It may be impossible to millthese varieties without any addition of water. Therefore, in these situations there may bea provision for light-tempering, following light-pearling action. The reason for pearling lightly before moisture addition is that moist barley will take more power for pearling and also that pearling performance will suffer. That light pearling may sufce in these situations is because the barley is further pearled or processed in the mill; thus, any remaining hulls may be removed there. 1.2.4 Barley PearlerThe principal equipment in the milling of barley is barley pearler. Such machine has been in use for many years. Its introduction made the grinding stones extinct in the barley- pearling operation and helped the development of the barley-milling process on an indus- trial scale, and thus, small-scale barley-milling operation evolved into an industry. barley hullerpearler essentially involves removal of the hulls through abrasion and friction between grinding medium and screen jacket. Although the grinding me-dium still consists of several stone (emery) rings attached to central shaft that runs ata high speed (Fig. , the grain and hardness of the stone rings are designed to providean effective hulling and pearling action. The intensity of such action can be controlled through four segmented outlet slides controlled by micrometer screws from outside to regulate the desired length of time the material is to be treated;