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BRSM college of Agricultural engineering & Technology Mungeli IGKV Raipur 
Course Name - Seminar 
Course No. - AE-498 
Sem...
INTRODUCTION 
Today rice is one of the most important & major food grain of the world. 
Nearly 1/2 to 2/3 of total world...
Basic flow chart of rice milling process
CLEANING 
Removing of foreign matter from paddy,sach as stone, pebbles, dirt, dust & husk. 
Equipment-vibrating paddy cl...
Parboiling of paddy 
Paddy is soaked & wet paddy is heated then dried. 
To achieve maximum recovery of head rice & to mi...
DRYING 
LSU(Lousiana State University ) drying is mechanical hot air dryer. 
During the first pass paddy should be dried...
DESTONNER 
Separating paddy from stones & pebbles before milling or dehusking. 
Equipment-destoner 
Specification- 
* v...
SHELLING 
Separating husk from the paddy grain. 
Paddy grain is passed between two resilient surface moving at different...
PADDY SEPARATOR 
Separating paddy from brown rice. 
Equipment-tray separator 
Specification- 
* No. of tray-10 to 15. 
...
WHITENER 
Removal of bran layers from brown rice. 
Equipment- vertical whitening cone. 
Specification- 
* cast iron cyl...
GRADER 
The grader is use for obtain higher quality rice, which contains less broken. 
It is cylindrical in shape & inte...
WEIGHING,PACKAGING,TRANPORTING 
The rice obtained from grater is filled in the jute bags & weigh on the weighing machine....
Rice mill PPT by om
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Rice mill PPT by om

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Rice mill PPT by om

  1. 1. BRSM college of Agricultural engineering & Technology Mungeli IGKV Raipur Course Name - Seminar Course No. - AE-498 Seminar On The Different Process in Rice Mill Presented by OM PRAKASH SURYAWANSHI B.TECH (AGRIL.ENGG.) 4TH YEAR
  2. 2. INTRODUCTION Today rice is one of the most important & major food grain of the world. Nearly 1/2 to 2/3 of total world population has totally adopted rice as their main food. Rice milling technique improve the nutritional, cooking & Eating quality of rice.
  3. 3. Basic flow chart of rice milling process
  4. 4. CLEANING Removing of foreign matter from paddy,sach as stone, pebbles, dirt, dust & husk. Equipment-vibrating paddy cleaner. Specification- * No. of screen-8.for (2-paddy,2-stones,2-hask,2- dust). * Screen openings- (0.20mm,0.8mm,0.6mm) * Aspirator-husk. * Moter-2hp.
  5. 5. Parboiling of paddy Paddy is soaked & wet paddy is heated then dried. To achieve maximum recovery of head rice & to minimize breakage during milling. Equipment-vertical 12 tanks. It is carried out three steps- soaking-hot water at 800C for 6 hr. Steaming-7.5 kg/ cm2 for 20 min.
  6. 6. DRYING LSU(Lousiana State University ) drying is mechanical hot air dryer. During the first pass paddy should be dried to mc. of 16-17% & them tempered for 3-4hr. Steam-7.5 kg/cm2.for 3-4hr. Dried paddy at 13% mc.
  7. 7. DESTONNER Separating paddy from stones & pebbles before milling or dehusking. Equipment-destoner Specification- * vartical vibratry screen. * aspirator-suck the husk. * driven motor-2hp.
  8. 8. SHELLING Separating husk from the paddy grain. Paddy grain is passed between two resilient surface moving at different speed in the opposite direction. Equipment-rubber-roll Sheller. Specification- *dia.of roller -220 to 260mm. * speed ratio-1:0.75 to 1:0.80. * thickness of roller -15 to 30. * hardness of coating- 90 to 95 shore.
  9. 9. PADDY SEPARATOR Separating paddy from brown rice. Equipment-tray separator Specification- * No. of tray-10 to 15. * Position of tray-mounted one above the other 5cm a part. * Front positions is inclined. * speed-300rpm. * driven motor-2hp.
  10. 10. WHITENER Removal of bran layers from brown rice. Equipment- vertical whitening cone. Specification- * cast iron cylinder with abrasive stone coating. * A wire screen is fixed around the cone. * Distance between coating & screen- 4.5 to 6mm. * Bran aspirator- remove the bran layer. * driven motor-5 hp.
  11. 11. GRADER The grader is use for obtain higher quality rice, which contains less broken. It is cylindrical in shape & intendent on the inner side. Driven motor-2hp.
  12. 12. WEIGHING,PACKAGING,TRANPORTING The rice obtained from grater is filled in the jute bags & weigh on the weighing machine. * Bags-25kg,50kg. After that transportation by trucks, tractors to the buyer.

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