Greengram Processing

TNAU mini dhal mill
   Mini dhal mill consists of a hopper, an auger to feed the pulse to the dehusking chamber. In the dehusking chamber pulses are sent in between a rotating cast iron disc and a stationary rubber pad and get dehusked. Depending upon the size of the pulse, the clearance between the rotating disc and the rubber disc can be adjusted with the help of a hand wheel provided outside the dehusking chamber. By replacing the rubber disc with cast iron serrated disc, this can be used for pulverizing the dry grains into flour. The milling capacity of the unit was found to be 20 kg/h.

TNAU improved dhal mill
   The milling unit has a feed hopper, fitted with a sliding gate for uniform feeding of pre-treated pulses in to the milling section. The milling unit is of a vertical attrition type, which has a stationery rubber disc and rotating corrugated steel disk for the abrasive action on the materials. The gap between the rubber disk and steel disk can be adjusted through a hand wheel depending upon the size of pulses. The milling capacity of the unit was found to be 30 kg/h. The dehusked / milled pulses are exposed to the blower with the adjustable air flow rate, which separates the husk from the dhal. Then, the milled dhal is allowed to fall on the sieves for cleaning and separation. This machine is suitable highly suitable for red gram and green gram varieties.