Bevel-helical gearboxes B3 x s Shaft seals see pages onwards For detail B3VV-21-C

Flender/Flender Gear Units/Bevel-helical gearboxes B3

ort- and medium-grain rice, high germ removal and high polishingcan be achieved without sacricing whole grain yield. For Indica long grains, this verticalsystem can be useful for reducing the amount of broken grains, particularly for brittle ricevarieties. Another advantage of the combined vertical system is that water mist polishing system can be added to the nal-pass through the vertical frictiontype-milling machine.This enhances the nal bran removal process and helps produce milled rice without resid- ual bran. This water mist also cools the rice. more detailed discussion of the benets of water mist polishing is undertaken in the following section. Two additional benets related to installation are as follows: Floor space required for installation is minimized, compared with horizontal-milling machines. Mills can be upgraded to higher efciencies and higher capacities within limited oor space. The sec- ond benet of the vertical-milling machines involves reduction of conveying equipment.As each of the subsequent units uses bottom-up ow, rice can ow automatically fromone machine to the next without any conveyor or elevating equipment. Figure 1 showshow the units can be connected in multibreak installation. 2.5 Water Mist Polishing As mentioned earlier, one of the goals in rice processing is enhancing the quality of the nished rice. The water mist polishing machine was developed as processing step to improve the nish or appearance of milled rice. As the name suggests, this machine uses ne mist or spray of water to remove traces of dust, bran, and rice polish from the surfaces of milled rice grains. Moreover, bran and polish hidden deep inside the grooves of ricegrains can be stripped away. The water mist and the subsequent rubbing action of themachine impart high polish or luster to the milled rice, which substantially elevates itsappearance. From dull appearance, the rice grains can be transformed into shiny, almosttranslucent kernels, which have good visual